This article reports the marker-assisted introgression of favorable alleles at three quantitative trait loci (QTL) for earliness and grain yield among maize elite lines. The QTL were originally detected in 1992 by means of ANOVA in a population of 96 recombinant inbred lines (RILs). Introgression started from a selected RIL, which was crossed three times to one of the original parents and then ...

Five recombinant inbred lines (RILs) of Arabidopsis (Arabidopsis thaliana), previously selected from the Bay-0 x Shahdara RIL population on the basis of differential leaf senescence phenotypes (from early senescing to late senescing) when cultivated under nitrogen (N)-limiting conditions, were analyzed to monitor metabolic markers related to N assimilation and N remobilization pathways. In each...

BACKGROUND AND AIMS Dormancy is a complex trait finely regulated by hormones and environmental factors. The phytochromes that sense red:far-red (R:FR) are the sole photoreceptors involved in the termination of dormancy and the induction of germination by light. The aims of this study were to identify and characterize loci controlling this process in seeds of Arabidopsis thaliana. METHODS Reco...

Microsatellite or simple sequence repeat (SSR) markers have been successfully used for genomic mapping, DNA fingerprinting, and marker-assisted selection in many plant species. Here we report the first successful assignment of 15 SSR markers to the Phaseolus vulgaris molecular linkage map. A total of 37 SSR primer pairs were developed and tested for amplification and product-length polymorphism...

ABBREVIATIONS: AFLP (Amplified Fragment Length Polymorphism); BAC (Bacterial Artificial Chromosome); CAPS (Cleaved Amplified Polymorphic Sequence); CPCSD (California Planting Cotton Seed Distributors); EST (Expressed Sequence Tag); FOV (Fusarium oxysporum f. sp. vasinfectum); FW (Fusarium Wilt); QTL (Quantitative Trait Locus); RAPD (Random Amplified Polymorphic DNA); RIL (Recombinant Inbred Lin...

Survival of a potentially lethal high temperature stress is a genetically variable thermal adaptation trait in many organisms. Organisms cope with heat stress by basal or induced thermoresistance. Here, we tested quantitative trait loci (QTL) for heat stress survival (HSS) in Drosophila melanogaster, with and without a cyclic heat-hardening pre-treatment, for flies that were reared at low (LD) ...

The fungal disease frogeye leaf spot can reduce yield up to 30% in susceptible soybean [Glycine max (L) Merr] cultivars. Rcs2 locus the cultivar Kent provides resistance all named Cercospora sojina races currently found United States, however, this for has not been molecularly mapped yet. F2:3 and recombinant inbred line (RIL) populations derived from a cross of Forrest × were phenotyped greenh...